Respuesta :

sanaiiwashington

Answer:

-0.970535284

Step-by-step explanation:

Apply the trig identity: cos2x=2cos2x−1. sin(105)=cos(15)=√2+√32.

Answer:

sin(105°)=-0.258819045102521

or [tex]\frac{ \sqrt{6} +\sqrt{2}}{4}[/tex]

Step-by-step explanation:

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